Wedge-making machine.



No. 871,324. PATENTBD NOV. 19, 1907.

' H. R. COCHRAN.

WEDGE MAKING MACHINE.

Arrmonron FILED un 2.7.1907.

2 SHEETS-SHEET 1.

PATBNTED Nov. 19, 190.7 H. R. COCHRAN. WEDGE MAKING MACHINE.APPLICATION' FILED MAY 2 7. 1907.

2 SHEETS-SHEET 2.

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HENRY RUSSELL COCHRAN, OF CAMDEN, ARKANSAS.

WEDGE-MAKING MACHINE.

Specification of Letters Patent.

Patented Nov. 19, 1907.

Application'iiled May 27. 1907. Serial lic. 376,009.

To all whom it may concern:

Be it known that I, HENRY RUSSELL Coen- RAN, citizen of the UnitedStates, residing at Camden, in the county of Ouachita and State ofArkansas, have invented certain new and useful Improvements inVedge-Nlaking ;\Ia l chines, of which the following is a speei'lication.

My invention is a machine Jfor making wooden wedges to be driven aftercross-cut saws in sawing lumber of any kind, as metal wedges cannot besafely used in this work. Both tapering faces of the wedge should beperfectly smooth and straight, tapering from the blunt end inwardly toan edge. These wedges are made of wood, and can be quickly andaccurately made by my ma- 1 chine.

In the accompanying drawings, Figure 1, is a top plan view of myinvention. Fig. 2, is a perspective view. Fig. 3, is a perspective viewof a block oi wood, from which the wedge is made. Fig. 4, is aperspective view of the wedge. Fig. 5, is an edge view of the wedge.

Similar numerals refer to similar parts throughout the several views.

In describing my invention I read the drawing from left to right.

My invention is described as followsz--In the accompanying drawings thenumeral 1, is an upright post. This post in cross sec- The top of thepost is level, except it is provided at each end with a recess 2,leaving projections 3. These projections form rests Vfor the armshereinafter described. Cut at an angle in the top of the post andrunning downwardly a con siderable depth is a slot 4; running upwardlyJfrom the recesses 3, are a couple ot' upward projections 5 and 6.Secured on each side of these projections are clamps 7 and S. Theseclamps are secured to the upward projections 5 and 6, by bolts and nuts9 and 10. The clamps 7 and S, extend outwardly `from the post 1, bybeing bent inwardly and outwardly by double elbows 11 and 12. Passingthrough the outer ends of these clamps are perforations in which workthreaded bolts 13, and screwing on the ends of said threaded bolts 13,are clamping nuts 14, provided with lever arms 15. A bearing 16, Ushaped in its middle, and U shaped at each end 18, and having vertical`perforations 'near each end, is seated in said slot.

The right-hand end 18, of said lower bearing,

turns bacluvardly and inwardly in the direction of said post and isperforated at its eX- treme end. The left-hand end 1S), of said lowerbearing turns forwardly and inwardly in the direction of said post andis perforated at its extreme end. Then a wedge 20, is driven tightlydown into said slot 4, to hold said lower bearing 16, in place, theupper end of which extends a little above the ends of the projections 5and 6. Secured on the upper end ol said wedge 20, is an upper bearing22. This upper bearing is somewhat U shaped and has in each end twoperforations. The tact that the said upper bearing 22, rests on theupper end of the wedge L20, leaves a space between said upper and lowerbearings, and these bearings are held thus apart by space nuts and bolts23. IIinged in the extreme ends of said bearings are knives 24. Theseknives are ground to a sharp edge and are provided with handles 25.

Blocks of wood 26, are placed, one between each pair of the clampingarms 7 and, 8, shown in Fig. 1, at the desired angle to Vform one sideof a wedge. Then the clamping nuts 14, are screwed down until the saidblocks are securelyT held. The knives are then operated, and cut oil'one side of the block at the proper angle, Then the other side of theblock is turned up, operated in the same way, and the wedge is formed.

With this machine accurate work can be rapidlyT done. Two men may workat the machine at once, one at each end, and help may feed the machinewith the blocks, and remove the wedges from the machine.

Although I have specifically described the combination, construction andarrangement of the several parts of my invention, I do not confinemyself particularly to suchspecitic combination, construction andarrangement, as I claim the right to make such changes and modi'iicationtherein as may clearly fall within the scope of my invention, and vwhichmay be resorted to without departing from the spirit, or sacrificing anyof my patentable rights therein.

I-Iavdng described my invention, what I claim as new and desire tosecure by Letters Patent, is

1. A wedge making machine consisting oi an upright post, provided at itsupper end with recesses 2, producing projections 3, a

vertical slot 4, cut downwardly in the upper.

end of said post, thus leaving projections 5 and 6, one on each side ofsaid slot; a lower bolts and nuts 23; knives 24, hinged in the eXtremeends of said bearings 5 clamping arms 7 and 8, secured to theprojection-s 5 and 6, their ends extending beyond the edges of saidposts 3 threaded bolts, passing horizontally through the eXtreme ends ofsaidclamping arms, clamping nuts, screwing on the threaded ends of saidbolts, said arms adapted to clamp and hold a block while operated on bysaid knives, substantially as shown and described and for the purposesset forth.

2. A Wedge making machine consisting of an upright post l, provided witha vertical slot 4, cut downwardly in the upper end of said post, a lowerbearing 16, having ends 18 and 19, turned up land secured to said postby means of a wedge driven in said slot an upper bearing 22, secured onthe upper end of said wedge bolts and nuts 23, holding said bearingsapart; knives 24,- hinged between the extreme ends of said bearings 5clamping arms 7 and 8, secured to the upper end of said post, their endsextending beyond the edges thereof; threaded bolts, eX- tendinghorizontally through the eXtreme ends of said clamping arms, andclamping nuts screwing on the threaded ends of said bolts, said armsadapted to clamp and hold a block while operated on by said knives,substantially as shown and described and for the purposes set forth.

In testimony whereof I afljx my signature, in presence of two witnesses.

HENRY RUSSELL COCHRAN.

